12211330 has 16 divisors (see below), whose sum is σ = 22208760. Its totient is φ = 4833792.

The previous prime is 12211327. The next prime is 12211333. The reversal of 12211330 is 3311221.

It is an interprime number because it is at equal distance from previous prime (12211327) and next prime (12211333).

It can be written as a sum of positive squares in 4 ways, for example, as 6702921 + 5508409 = 2589^2 + 2347^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12211330.

It is not an unprimeable number, because it can be changed into a prime (12211333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5325 + ... + 7264.

Almost surely, 2^12211330 is an apocalyptic number.

12211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211330 is a deficient number, since it is larger than the sum of its proper divisors (9997430).

12211330 is a wasteful number, since it uses less digits than its factorization.

12211330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12693.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12211330 is about 3494.4713477148. The cubic root of 12211330 is about 230.2789935129.

Adding to 12211330 its reverse (3311221), we get a palindrome (15522551).

The spelling of 12211330 in words is "twelve million, two hundred eleven thousand, three hundred thirty".